Topic: CL161
| Normally Open Contact |
Topic: CL161
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The Normally Open Contact mimics the behavior of a physical contact and changes in response to the status of a Bit Memory Address. The Normally Open Contact is ON when the related bit is ON.
1 Bit Memory Address: The Normally Open Contact requires a Bit Memory Address. The Bit Memory Address can be typed directly into the Address field on the dialog or it can be selected from the Address Picker.
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Note: Click the Browse Button |
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2 Immediate (Only for X Bit): Use this checkbox ONLY for X Bit Addresses. The status of all X Addresses are updated by reading the status of physical input points in the beginning of each program scan. If the program scan time is getting long, you may want to read the current status of a physical input point when this instruction is executed. In this case, use the Immediate checkbox to declare the X Input to be a Normally Open Immediate Contact. This option is grayed out until an X address is chosen.
Example Program
In the following example, when X001 is ON, Y001 will also be ON.
to open the